So I recently bought a set of Snap On Long Flank Drive Plus in standard and metric, I had seen a video that woodsockva made on youtube that compared snap on, wright, craftsman, and gearwrench. So I decided I was bored in the shop and didn't want to go in to the house so I took the test a little farther with Mac CL18LR (don't know what they call this series), snap on long flank drive plus, SK Wayne, Lectrolite, New SK, Old John Deere, Bonney, Craftsman Industrial, and Napa Pro. All of these are USA made and all 9/16 to try to keep the test pretty similar. I went with the wrench until it either rounded or broke the bolt, if it rounded I got another with the open end to try to make sure I didn't do something to make it slip. Out of all of them only the Mac and Snap On actually broke the head of the bolt off. All of the other brands rounded them off. Also, the threads stripped out of the snap on so I put another nut on it, then it broke off, Ill be posting pictures in a bit.











